Expanded shape/schema reflection

[justinbmeyer]

.getInstanceKeyDesriptor(Type, "key")

{
  get // if there's a getter function
  set, // if there's a setter function
  default, // default value
  enumerable, // if enumerable
  type, // a type specifier
  identity // if one of the uniquely identifying properties
}

.getKeyDesriptor(value, "key")

{
  get // if there's a getter function
  set, // if there's a setter function
  value, // value
  enumerable, // if enumerable
  type, // a type specifier
  identity // if one of the uniquely identifying properties
}

Type specifier

{
  new, // create a new value of this type
  isMember, // test if a value is a member of this type
  SetType // a type used to represent sets of this type
  kind // "map", "list", "string", "boolean", "number", "date"
}

Questions

• Should these be own[]? I think own would be faster, but we'd always need everything on the proto chain.